Global Patent Index - EP 1426904 A4

EP 1426904 A4 20050907 - THREE-DIMENSIONAL ELECTRONIC MAP DATA CREATION METHOD

Title (en)

THREE-DIMENSIONAL ELECTRONIC MAP DATA CREATION METHOD

Title (de)

ERZEUGUNGSVERFAHREN FÜR DREIDIMENSIONALE ELEKTRONISCHE KARTENDATEN

Title (fr)

PROCEDE DE CREATION DE DONNEES CARTOGRAPHIQUES ELECTRONIQUES TRIDIMENSIONNELLES

Publication

EP 1426904 A4 20050907 (EN)

Application

EP 02741202 A 20020619

Priority

  • JP 0206132 W 20020619
  • JP 2001185968 A 20010620

Abstract (en)

[origin: EP1426904A1] When creating three-dimensional electronic map data, three-dimensional modeling of a building is performed as follows without measuring height of the building. Firstly, a building is photographed and the photographing position and photographing parameters (camera direction, angle of view) are recorded. Secondly, in a virtual space prepared on a computer, a photograph is arranged so as to reproduce the state upon the photographing according to these data. In combination with this, a plan view of the building is arranged according to the two-dimensional map data. Thirdly, the plan view is moved in the height direction until it is overlapped with the photograph, thereby modeling the building. Thus, it is possible to realize three-dimensional modeling without measuring the height. <IMAGE>

IPC 1-7

G06T 17/50; G06T 15/20; G06T 17/00

IPC 8 full level

G01C 21/00 (2006.01); G01C 21/26 (2006.01); G06T 7/00 (2006.01); G06T 15/20 (2006.01); G06T 17/00 (2006.01); G06T 17/05 (2011.01); G06T 17/10 (2006.01); G06T 17/40 (2006.01); G06T 17/50 (2006.01); G06T 19/20 (2011.01); G08G 1/0969 (2006.01); G09B 29/00 (2006.01)

CPC (source: EP KR US)

G06F 30/00 (2020.01 - US); G06F 30/13 (2020.01 - EP US); G06T 7/50 (2016.12 - EP US); G06T 15/04 (2013.01 - EP US); G06T 17/00 (2013.01 - EP US); G06T 17/05 (2013.01 - EP KR US); G06T 17/10 (2013.01 - EP US)

Citation (search report)

  • [Y] WO 0137216 A2 20010525 - HARTFORD STEPHEN [US], et al
  • [XY] LIU P. ET AL: "Recognizing Buildings in Urban Scene of Distant View", DISCUSSION PAPERS OF CSIS, NO. 2, July 1998 (1998-07-01), pages 1 - 12, XP002335711, Retrieved from the Internet <URL:http://www.csis.u-tokyo.ac.jp/dp/2.pdf> [retrieved on 20050712]
  • [X] FUNKHOUSER T A: "A VISIBILITY ALGORITHM FOR HYBRID GEOMETRY- AND IMAGE-BASED MODELING AND RENDERING", COMPUTERS AND GRAPHICS, PERGAMON PRESS LTD. OXFORD, GB, vol. 23, October 1999 (1999-10-01), pages 719 - 728, XP000931135, ISSN: 0097-8493
  • [A] LAMMI J: "Spatially constrained building extraction using edge finding and model fitting", INTERNATIONAL ARCHIVES OF PHOTOGRAMMETRY AND REMOTE SENSING AUSTRALIA, vol. 32, 1997, pages 115 - 119, XP008049405, ISSN: 0256-1840
  • [A] O'KEEFE R ET AL: "The World Trade Center and the distance to the world's center", AMERICAN JOURNAL OF PHYSICS USA, vol. 60, no. 2, February 1992 (1992-02-01), pages 183 - 185, XP008049379, ISSN: 0002-9505
  • See references of WO 03001460A1

Citation (examination)

WATT, A.H.: "Fundamentals of three-dimensional computer graphics", 1989, ADDISON-WESLEY, wokingham, England, ISBN: 0-201-15442-0, pages: 13 - 16, XP007915096

Designated contracting state (EPC)

AT BE CH CY DE FR GB LI

DOCDB simple family (publication)

EP 1426904 A1 20040609; EP 1426904 A4 20050907; CN 1275206 C 20060913; CN 1539120 A 20041020; JP 2003006680 A 20030110; KR 100580585 B1 20060516; KR 20040004684 A 20040113; TW 565810 B 20031211; US 2005177350 A1 20050811; US 7343268 B2 20080311; WO 03001460 A1 20030103

DOCDB simple family (application)

EP 02741202 A 20020619; CN 02812147 A 20020619; JP 0206132 W 20020619; JP 2001185968 A 20010620; KR 20037015797 A 20031202; TW 91113347 A 20020619; US 48139303 A 20031219